aoteman1990 发表于 2012-5-4 17:19:43

整车仿真时添加转向方程时遇到的问题(ADAMS MOTION 李军版)

把MOTION去掉小车可以直线运行。加上MOITON后在第二秒时提示错误。MOTION方程是STEP(time,2,0,4,105d)


错误提示信息如下:

ERROR:   At time2.030000000E+00 the integrator is unable to proceed.Possible

Causes:
(1) The accuracy required for the numerical solution can not be attained.
Relax (increase) the value of the acceptable integration ERROR.
(2) Incompatible redundant constraints, a lock up, or a bifurcation
situation.The latter two indicate a mechanism design problem.
(3) The system includes a zero (or relatively small) mass on a part with
an unconstrained translational degree of freedom.
Make sure you have mass on all parts with translational degrees of freedom.
(4) The system includes a zero (or relatively small) inertia on a part
with an unconstrained rotational degree of freedom.
Make sure you have inertias on all parts with rotational degrees of freedom.
(5) An Adams element has a function expression that equals exactly itself.
For example,
   SFORCE/id1,I=id2,J=id3,ROT,FUNC=SFORCE(id1,jflag,comp,rm),and
   DIFF/id4,IMPLICIT,IC=0,FUNC=DIF1(id4).
Similarly,
   VARIABLE/id5, FUNC=VARVAL(id5)*TIME
equals itself at 1 second. Avoid setting an Adams element equal to itself.

ERROR:   Simulation failure detected.
ERROR:   Simulation failure detected.

麻烦高手指点,本人Q 460452774

逆鳞1989 发表于 2014-10-5 13:20:39

楼主如何解决的

wwccming 发表于 2014-11-25 09:15:34

我也不会呀
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